The two piece aftermarket rubber seals like the Mancini one work very well but there is a technique to installing them to ensure a leak free seal. They need to be clocked so the seams are not on the separation line of the cap and block. I also put a dab of RTV on the ends. Dave That's the way I've ...

No offence , but I'm with Mike on this one and I still don't understand all the issues people have with the original style seals . I have yet to have one leak on me after I installed one . Even the 440 in my Warlock leaked when I first got it and that had less then 2 K on it . When I pulled it and d...